"The King--Don Juan Isassi Ydiaquez. The Count-Duke will deliver to you a boy in whose education and virtuous bringing up you will serve me well and with absolute secrecy, following therein all the orders given to you by the Count-Duke. I, the King." It is clear that this Don Francisco Fernando was no ordinary babe of four to require the personal attention of all these high and mighty gentlemen in sending him to school. Philip had one child by his wife at this time, the chubby youngster Don Baltasar, who for all time will prance on his stout bay cob on the canvas of Velazquez, and only the year previous, in 1629, there had been born to the King, by the beautiful actress, Maria Calderon, the idol of the Spanish stage, a boy who in the fulness of time was to become that second great Don John of Austria, the last virile man of his race; but Don Francisco Fernando was the first-born, and apparently his mother was of far superior social rank to the jaunty "Calderona," so that he was no doubt, baby as he was, destined for great things. The instructions given by the Count-Duke to Don Juan Isassi with regard to the care of his charge are minute to the last degree, and reflect in every line the great importance that is attached to the identification of the child. The long document begins by saying that the boy delivered to Don Juan is the illegitimate son of the King by the {332} daughter of a gentleman, and was born in the house of his grandparents, between eleven and twelve at night, on May 15, 1626. Don Francisco Eraso, Count of Humanes, took the midwife, and was present at the birth; conveying the infant as soon as it was born to the house of Don Baltasar de Alamos y Barrientos, Councillor of the Treasury, where a nurse was awaiting him, and the child had there remained until its delivery to Don Juan. After impressing upon Don Juan the need for the most exquisite care to be taken of the child's life and health, and arranging for the nurses and doctor who have had the care of him to accompany him to Salamanca for the first few months of the change, the Count-Duke instructs Don Juan to seek a good doctor to be kept at hand permanently, who is not to be told who the boy is unless his services are required, and in the meanwhile is to receive a good salary. "His Majesty," says Olivares, "has confided this care to me, and I depend upon you to carry out the task."